Interesting, and I like the minimalist look and feel of it too! Biggest thing I miss is a little hover state on the pieces to show what they do and how much health they have. Not all pieces did what I expected them to do, but that might've been me misunderstanding? For example, the horse has 2 [->] which I thought meant it would travel 2 tiles in one turn. But maybe that meant attack?
Either way, good job!